1/* include/linux/msm_audio.h 2 * 3 * Copyright (C) 2008 Google, Inc. 4 * 5 * This software is licensed under the terms of the GNU General Public 6 * License version 2, as published by the Free Software Foundation, and 7 * may be copied, distributed, and modified under those terms. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 */ 15 16#ifndef __LINUX_MSM_AUDIO_H 17#define __LINUX_MSM_AUDIO_H 18 19#include <linux/types.h> 20#include <linux/ioctl.h> 21#include <asm/sizes.h> 22 23/* PCM Audio */ 24 25#define AUDIO_IOCTL_MAGIC 'a' 26 27#define AUDIO_START _IOW(AUDIO_IOCTL_MAGIC, 0, unsigned) 28#define AUDIO_STOP _IOW(AUDIO_IOCTL_MAGIC, 1, unsigned) 29#define AUDIO_FLUSH _IOW(AUDIO_IOCTL_MAGIC, 2, unsigned) 30#define AUDIO_GET_CONFIG _IOR(AUDIO_IOCTL_MAGIC, 3, unsigned) 31#define AUDIO_SET_CONFIG _IOW(AUDIO_IOCTL_MAGIC, 4, unsigned) 32#define AUDIO_GET_STATS _IOR(AUDIO_IOCTL_MAGIC, 5, unsigned) 33#define AUDIO_ENABLE_AUDPP _IOW(AUDIO_IOCTL_MAGIC, 6, unsigned) 34#define AUDIO_SET_ADRC _IOW(AUDIO_IOCTL_MAGIC, 7, unsigned) 35#define AUDIO_SET_EQ _IOW(AUDIO_IOCTL_MAGIC, 8, unsigned) 36#define AUDIO_SET_RX_IIR _IOW(AUDIO_IOCTL_MAGIC, 9, unsigned) 37#define AUDIO_SET_VOLUME _IOW(AUDIO_IOCTL_MAGIC, 10, unsigned) 38#define AUDIO_ENABLE_AUDPRE _IOW(AUDIO_IOCTL_MAGIC, 11, unsigned) 39#define AUDIO_SET_AGC _IOW(AUDIO_IOCTL_MAGIC, 12, unsigned) 40#define AUDIO_SET_NS _IOW(AUDIO_IOCTL_MAGIC, 13, unsigned) 41#define AUDIO_SET_TX_IIR _IOW(AUDIO_IOCTL_MAGIC, 14, unsigned) 42 43struct msm_audio_config { 44 uint32_t buffer_size; 45 uint32_t buffer_count; 46 uint32_t channel_count; 47 uint32_t sample_rate; 48 uint32_t type; 49 uint32_t unused[3]; 50}; 51 52struct msm_audio_stats { 53 uint32_t byte_count; 54 uint32_t sample_count; 55 uint32_t unused[2]; 56}; 57 58/* Audio routing */ 59 60#define SND_IOCTL_MAGIC 's' 61 62#define SND_MUTE_UNMUTED 0 63#define SND_MUTE_MUTED 1 64 65struct msm_snd_device_config { 66 uint32_t device; 67 uint32_t ear_mute; 68 uint32_t mic_mute; 69}; 70 71#define SND_SET_DEVICE _IOW(SND_IOCTL_MAGIC, 2, struct msm_device_config *) 72 73#define SND_METHOD_VOICE 0 74 75struct msm_snd_volume_config { 76 uint32_t device; 77 uint32_t method; 78 uint32_t volume; 79}; 80 81#define SND_SET_VOLUME _IOW(SND_IOCTL_MAGIC, 3, struct msm_snd_volume_config *) 82 83/* Returns the number of SND endpoints supported. */ 84 85#define SND_GET_NUM_ENDPOINTS _IOR(SND_IOCTL_MAGIC, 4, unsigned *) 86 87struct msm_snd_endpoint { 88 int id; /* input and output */ 89 char name[64]; /* output only */ 90}; 91 92/* Takes an index between 0 and one less than the number returned by 93 * SND_GET_NUM_ENDPOINTS, and returns the SND index and name of a 94 * SND endpoint. On input, the .id field contains the number of the 95 * endpoint, and on exit it contains the SND index, while .name contains 96 * the description of the endpoint. 97 */ 98 99#define SND_GET_ENDPOINT _IOWR(SND_IOCTL_MAGIC, 5, struct msm_snd_endpoint *) 100 101#endif /* __LINUX_MSM_AUDIO_H */ 102